1. Busbar faults
Busbars may experience various inter phase short circuits or single-phase ground faults
When a fault occurs, this busbar will be powered off, which may cause damage to system stability
2. Busbar fault protection methods
a) Using adjacent component protection devices to remove busbar faults
The probability of busbar faults is low, and the structure of busbar protection is complex, Busbars with misoperation of 35kV and below are not equipped with busbar protection when the requirements for speed are not high
Use protection devices from other branches to cut off bus faults
For example,
cut off the power supply of the generator, cut off the power supply of the transformer, cut off the power supply of the wireb) Install specialized bus protection
When double buses are running or single bus sections are needed, special bus protection is required
Principle:
When double buses and single bus sections are 110kV and above, single buses of 110kV and above should be installed, and important 35kV buses should be installed.Function of testing report:
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